Home / 13,144.80-19,717.20-11,935.20

Finding the Fourth Proportional to 13,144.80, 19,717.20 and 11,935.20

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Solution

The fourth proportional to 13,144.80, 19,717.20 and 11,935.20 is: 17,902.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,144.80 : 19,717.20 = 11,935.20 : x
  2. Step 2: Convert to fraction form
    13,144.80/19,717.20 = 11,935.20/x
  3. Step 3: Cross multiply
    13,144.80x = 19,717.20 × 11,935.20
  4. Step 4: Simplify right side
    13,144.80x = 235,328,725.44
  5. Step 5: Solve for x
    x = 235,328,725.44/13,144.80
  6. Step 6: Final answer
    x = 17,902.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.